<html>
<head>
</head>

<body topmargin="0" marginheight="0" leftmargin="0" marginwidth="0" width=100%>
<script language='javascript'>
function document.body.onselectstart(){
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}

premainframeset=top.mainframeset.cols;
function showhidelist(){
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}
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<table width="8" height="100%" border="0" cellpadding="0" cellspacing="0">
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  <td background='innerimagebg.gif' onclick="showhidelist()" height="100%" title="隐藏/显示列表" style="CURSOR: hand"><img src="innerimage2.gif"></td>
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</table>
</body></html>